Innovative Chromatography Products
www.restek.it
www.restek.it
Questo cromatogramma potrebbe contenere analiti che sono sinonimi dei vostri parametri di ricerca.
PAMS on Rt-Alumina BOND/MAPD (by FID) and Rxi-624Sil MS (by MS) using Deans Switch
| Peaks | tR (min) | |
|---|---|---|
| 1. | Ethane | 7.68 |
| 2. | Ethylene | 8.68 |
| 3. | Propane | 10.36 |
| 4. | Propylene | 15.58 |
| 5. | Acetylene | 17.86 |
| 6. | Isobutane | 7.19 |
| 7. | trans-2-Butene | 7.84 |
| 8. | n-Butane | 7.94 |
| 9. | cis-2-Butene | 8.19 |
| 10. | 1-Butene | 8.61 |
| 11. | Isopentane | 10.16 |
| 12. | 1-Pentene | 10.99 |
| 13. | n-Pentane | 11.25 |
| 14. | trans-2-Pentene | 11.82 |
| 15. | Isoprene | 12.22 |
| 16. | cis-2-Pentene | 12.28 |
| 17. | 2,2-Dimethylbutane | 13.19 |
| 18. | 2,3-Dimethylbutane | 15.03 |
| 19. | 2-Methylpentane | 15.15 |
| 20. | Cyclopentane | 15.28 |
| 21. | 3-Methylpentane | 16.16 |
| 22. | 1-Hexene | 16.76 |
| 23. | n-Hexane | 17.05 |
| 24. | 2,4-Dimethylpentane | 18.7 |
| 25. | Methylcyclopentane | 18.94 |
| 26. | Bromochloromethane | 19.86 |
| 27. | 2-Methylhexane | 20.56 |
| 28. | Cyclohexane | 20.71 |
| 29. | 2,3-Dimethylpentane | 20.79 |
| 30. | 3-Methylhexane | 21 |
| Peaks | tR (min) | |
|---|---|---|
| 31. | Benzene | 21.39 |
| 32. | 2,2,4-Trimethylpentane | 21.63 |
| 33. | n-Heptane | 22 |
| 34. | 1,4-Difluorobenzene | 22.3 |
| 35. | Methylcyclohexane | 23.34 |
| 36. | 2,3,4-Trimethylpentane | 24.12 |
| 37. | 2-Methylheptane | 24.46 |
| 38. | 3-Methylheptane | 24.75 |
| 39. | Toluene | 25.41 |
| 40. | n-Octane | 25.55 |
| 41. | Chlorobenzene-d5 | 27.83 |
| 42. | Ethylbenzene | 27.98 |
| 43. | n-Nonane | 28.11 |
| 44. | m-Xylene | 28.17 |
| 45. | p-Xylene | 28.17 |
| 46. | o-Xylene | 28.76 |
| 47. | Styrene | 28.78 |
| 48. | Isopropylbenzene | 29.28 |
| 49. | 4-Bromofluorobenzene | 29.56 |
| 50. | n-Propylbenzene | 29.86 |
| 51. | 1,2,3-Trimethylbenzene | 29.96 |
| 52. | n-Decane | 30 |
| 53. | p-Ethyltoluene | 30.01 |
| 54. | 1,3,5-Trimethylbenzene | 30.08 |
| 55. | m-Ethyltoluene | 30.37 |
| 56. | 1,2,4-Trimethylbenzene | 30.6 |
| 57. | o-Ethyltoluene | 31.16 |
| 58. | m-Diethylbenzene | 31.34 |
| 59. | p-Diethylbenzene | 31.48 |
| 60. | n-Undecane | 31.52 |
| 61. | n-Dodecane | 32.84 |
GC_AR1173
| Column | Rxi-624Sil MS, 60 m, 0.25 mm ID, 1.40 µm (cat.# 13869) | ||||||||
| with zero dead volume Valco internal union (cat.# 20150) | |||||||||
| Sample | Ozone precursor/PAMS mix (cat.# 26370) | ||||||||
| Diluent: | Air | ||||||||
| Conc.: | 10 ppbv | ||||||||
| Injection | on-column | ||||||||
| Oven | |||||||||
| Oven Temp.: | 35 °C (hold 7 min) to 60 °C at 3 °C/min to 170 °C at 10 °C/min to 250 °C at 30 °C/min (hold 6 min) | ||||||||
| Carrier Gas | He, constant flow | ||||||||
| Flow Rate: | 2.0 mL/min | ||||||||
| Detector | MS | ||||||||
| Mode: | Scan | ||||||||
| Scan Program: |
| ||||||||
| Transfer Line Temp.: | 250 °C | ||||||||
| Analyzer Type: | Quadrupole | ||||||||
| Source Type: | Extractor | ||||||||
| Source Temp.: | 230 °C | ||||||||
| Quad Temp.: | 150 °C | ||||||||
| Electron Energy: | 70 eV | ||||||||
| Solvent Delay Time: | 5.7 min | ||||||||
| Tune Type: | BFB | ||||||||
| Ionization Mode: | EI | ||||||||
| Preconcentrator | Markes Unity 2 + CIA | ||||||||
| Trap 1 Settings | |||||||||
| Cooling temp.: | 5 °C | ||||||||
| Desorb temp.: | 300 °C | ||||||||
| Desorb flow: | 6 mL/min | ||||||||
| Desorb time: | 180 sec | ||||||||
| Internal Standard | |||||||||
| Purge flow: | 50 mL/min | ||||||||
| Purge time: | 60 sec | ||||||||
| Vol.: | 50 mL | ||||||||
| ISTD flow: | 50 mL/min | ||||||||
| Standard | |||||||||
| Size: | 400 mL | ||||||||
| Purge flow: | 50 mL/min | ||||||||
| Purge time: | 60 sec | ||||||||
| Sample flow: | 100 mL/min | ||||||||
| Instrument | Agilent 7890B GC & 5977A MSD | ||||||||
| Notes | Deans switch time: 6.489 min Primary column to Deans switch: Rxi-624Sil MS 60 m x 0.25 mm x 1.40 μm (cat.# 13869), 2 mL/min He Secondary column to FID: Rt-Alumina BOND/MAPD 30 m x 0.25 mm x 4 μm (cat.# 19781), 3 mL/min He Transfer line to MS: intermediate-polarity deactivated 1 m x 0.1 mm (cat.# 10100), 3 mL/min He FID Parameters Temperature: 250 °C H2 flow: 30 mL/min Air flow: 400 mL/min Makeup (N2) flow: 22 mL/min Data rate: 5Hz |
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